The name Korea derives from the name Goryeo. The name Goryeo itself was first used by the ancient kingdom of "Goguryeo in the 5th century as a shortened form of its name. The 10th-century kingdom of "Goryeo succeeded Goguryeo,[50][51][52][53] and thus inherited its name, which was pronounced by visiting Persian merchants as "Korea".[54] The modern spelling of Korea first appeared in the late 17th century in the travel writings of the "Dutch East India Company's "Hendrick Hamel.[55] Despite the coexistence of the spellings Corea and Korea in 19th century publications, some Koreans believe that "Imperial Japan, around the time of the Japanese occupation, intentionally standardised the spelling on Korea, making "Japan appear first alphabetically.[55][56][57]

After Goryeo was replaced by Joseon in 1392, Joseon became the official name for the entire territory, though it was not universally accepted. The new official name has its origin in the ancient country of "Gojoseon (Old Joseon). In 1897, the "Joseon dynasty changed the official name of the country from Joseon to Daehan Jeguk ("Korean Empire). The name Daehan, which means "great Han" literally, derives from "Samhan (Three Hans). However, the name Joseon was still widely used by Koreans to refer to their country, though it was no longer the official name. Under "Japanese rule, the two names Han and Joseon coexisted. There were several groups who "fought for independence, the most notable being the "Provisional Government of the Republic of Korea (대한민국 임시정부/大韓民國臨時政府).

Following the "surrender of Japan, in 1945, the Republic of Korea (대한민국/大韓民國; ""listen) was adopted as the legal name for the new country. Since the government only controlled the southern part of the "Korean Peninsula, the informal term South Korea was coined, becoming increasingly common in the "western world. While South Koreans use Han (or Hanguk) to refer to the entire country, North Koreans and Koreans in China use the term Joseon as the name of the country.

The "history of Korea begins with the founding of Joseon (also known as ""Gojoseon", or Old Joseon, to differentiate it with the 14th century dynasty) in 2333 BC by "Dangun, according to Korea's foundation mythology.[63][64] Gojoseon expanded until it controlled the northern Korean Peninsula and parts of "Manchuria. "Gija Joseon was purportedly founded in the 12th century BC, but its existence and role have been controversial in the modern era.[64][65] In 108 BC, the "Han dynasty "defeated "Wiman Joseon and installed "four commanderies in the northern Korean peninsula. Three of the commanderies fell or retreated westward within a few decades, but the "Lelang commandery remained as a center of cultural and economic exchange with successive Chinese dynasties for four centuries, until it was conquered by "Goguryeo in 313.[66]

During the period known as the "Proto–Three Kingdoms of Korea, the states of "Buyeo, "Okjeo, "Dongye, and "Samhan occupied the Korean peninsula and southern Manchuria. From them, "Goguryeo, "Baekje, and "Silla emerged to control the peninsula as the "Three Kingdoms of Korea. Goguryeo, the largest and most powerful among them, was a highly militaristic state,[67][68] and competed with various Chinese dynasties during its 700 years of history. Goguryeo experienced a golden age under "Gwanggaeto the Great and his son "Jangsu,[69][70][71][72] who both subdued Baekje and Silla during their times, achieving a brief unification of the Three Kingdoms of Korea and becoming the most dominant power on the Korean Peninsula.[73][74] In addition to contesting for control of the Korean Peninsula, Goguryeo had many "military conflicts with various Chinese dynasties,[75] most notably the "Goguryeo–Sui War, in which Goguryeo defeated a huge force said to number over a million men.[76][77][78][79][80] Baekje was a great maritime power;[81] its nautical skill, which made it the "Phoenicia of East Asia, was instrumental in the dissemination of Buddhism throughout East Asia and continental culture to Japan.[82][83] Baekje was once a great military power on the Korean Peninsula, especially during the time of "Geunchogo,[84] but was critically defeated by Gwanggaeto the Great and declined.[85] Silla was the smallest and weakest of the three, but it used cunning diplomatic means to make opportunistic pacts and alliances with the more powerful Korean kingdoms, and eventually "Tang China, to its great advantage.[86][87]

In 936, the Later Three Kingdoms were united by "Wang Geon, a descendant of Goguryeo nobility,[115][116] who established "Goryeo as the successor state of "Goguryeo.[50][51][52][53] Balhae had fallen to the "Khitan Empire in 926, and a decade later the "last crown prince of Balhae fled south to Goryeo, where he was warmly welcomed and included into the ruling family by Wang Geon, thus unifying the two successor nations of Goguryeo.[117] Like Silla, Goryeo was a highly cultural state, and invented the metal movable type "printing press.[58][59][60][61][62][118][119] After defeating the Khitan Empire, which was the most powerful empire of its time,[120][121] in the "Goryeo–Khitan War, Goryeo experienced a golden age that lasted a century, during which the "Tripitaka Koreana was completed and there were great developments in printing and publishing, promoting learning and dispersing knowledge on philosophy, literature, religion, and science; by 1100, there were 12 universities that produced famous scholars and scientists.[122][123] However, the "Mongol invasions in the 13th century greatly weakened the kingdom. Goryeo was never conquered by the Mongols, but exhausted after three decades of fighting, the Korean court sent its "crown prince to the "Yuan capital to swear allegiance to "Kublai Khan, who accepted, and married one of his daughters to the Korean crown prince.[124] Henceforth, Goryeo continued to rule Korea, though as a tributary ally to the Mongols for the next 86 years. During this period, the two nations became intertwined as all subsequent Korean kings married Mongol princesses,[124] and the "last empress of the Yuan dynasty was a Korean princess.[125] In the mid-14th century, Goryeo drove out the Mongols to regain its northern territories, briefly conquered "Liaoyang, and defeated invasions by the "Red Turbans. However, in 1392, General "Yi Seong-gye, who had been ordered to attack China, turned his army around and staged a coup.

Yi Seong-gye declared the new name of Korea as "Joseon" in reference to Gojoseon, and moved the capital to Hanseong (one of the old names of "Seoul).[126] The first 200 years of the Joseon dynasty were marked by peace, and saw great advancements in science[127][128] and education,[129] as well as the creation of "Hangul by "Sejong the Great to promote literacy among the common people.[29] The prevailing ideology of the time was "Neo-Confucianism, which was epitomized by the "seonbi class: nobles who passed up positions of wealth and power to lead lives of study and integrity. Between 1592 and 1598, "Toyotomi Hideyoshi launched "invasions of Korea, but his advance was halted by Korean forces (most notably the "Joseon Navy led by Admiral "Yi Sun-sin and his renowned ""turtle ship")[130][131][132][133][134] with assistance from "Righteous Army militias formed by Korean civilians, and "Ming dynasty Chinese troops. Through a series of successful battles of attrition, the Japanese forces were eventually forced to withdraw, and relations between all parties became normalized. However, the "Manchus took advantage of Joseon's war-weakened state and "invaded in 1627 and 1637, and then went on to "conquer the destabilized Ming dynasty. After normalizing relations with the new "Qing dynasty, Joseon experienced a nearly 200-year period of peace. Kings "Yeongjo and "Jeongjo particularly led a new renaissance of the Joseon dynasty during the 18th century.[135][136] In the 19th century, the royal in-law families gained control of the government, leading to mass corruption and weakening of the state, and severe poverty and peasant rebellions throughout the country. Furthermore, the Joseon government adopted a strict isolationist policy, earning the nickname "the "hermit kingdom", but ultimately failed to protect itself against "imperialism and was forced to open its borders. After the "First Sino-Japanese War and the "Russo-Japanese War, Korea was "occupied by Japan (1910–45). At the end of "World War II, the Japanese surrendered to Soviet and U.S. forces who occupied the northern and southern halves of Korea, respectively.

In the South, "Syngman Rhee, an opponent of communism, who had been backed and appointed by the United States as head of the provisional government, won the first presidential elections of the newly declared Republic of Korea in May. In the North, a former anti-Japanese guerrilla and communist activist, "Kim Il-sung was appointed premier of the Democratic People's Republic of Korea in September.

In October the Soviet Union declared Kim Il-sung's government as sovereign over both parts. The UN declared Rhee's government as "a lawful government having effective control and jurisdiction over that part of Korea where the UN Temporary Commission on Korea was able to observe and consult" and the Government "based on elections which was observed by the Temporary Commission" in addition to a statement that "this is the only such government in Korea."[137] Both leaders began an authoritarian repression of their political opponents inside their region, seeking for a unification of Korea under their control. While South Korea's request for military support was denied by the United States, North Korea's military was heavily reinforced by the Soviet Union.

On June 25, 1950, North Korea invaded South Korea, sparking the "Korean War, the Cold War's first major conflict, which continued until 1953. At the time, the Soviet Union had boycotted the United Nations (UN), thus forfeiting their veto rights. This allowed the UN to intervene in a civil war when it became apparent that the superior North Korean forces would unify the entire country. The Soviet Union and China backed North Korea, with the later participation of millions of "Chinese troops. After an ebb and flow that saw both sides almost pushed to the brink of extinction, and massive losses among Korean civilians in both the north and the south, the war eventually reached a stalemate. The 1953 armistice, never signed by South Korea, split the peninsula along the "demilitarized zone near the original demarcation line. No peace treaty was ever signed, resulting in the two countries remaining technically at war. Over 1.2 million people died during the Korean War.[138]

In 1960, "a student uprising (the "April 19 Revolution") led to the resignation of the autocratic, corrupt President Syngman Rhee. A period of political instability followed, broken by General "Park Chung-hee's "May 16 coup against the weak and ineffectual government the next year. Park took over as president until "his assassination in 1979, overseeing rapid "export-led economic growth as well as implementing political repression. Park was heavily criticised as a ruthless military dictator, who in 1972 extended his rule by creating a "new constitution, which gave the president sweeping (almost dictatorial) powers and permitted him to run for an unlimited number of six-year terms. However, the "Korean economy developed significantly during Park's tenure and the government developed the "nationwide expressway system, the "Seoul subway system, and laid the foundation for economic development during his 17-year tenure.

The years after Park's assassination were marked again by political turmoil, as the previously suppressed opposition leaders all campaigned to run for president in the sudden political void. In 1979 there came the "Coup d'état of December Twelfth led by General "Chun Doo-hwan. Following the Coup d'état, Chun Doo-hwan planned to rise to power through several measures. On May 17, Chun Doo-hwan forced the Cabinet to expand martial law to the whole nation, which had previously not applied to the island of "Jejudo. The expanded martial law closed universities, banned political activities and further curtailed the press. Chun's assumption of the presidency in the events of May 17, triggered nationwide protests demanding democracy, in particular in the city of "Gwangju, to which Chun sent special forces to violently suppress the "Gwangju Democratization Movement.[139]

In 2016, President Park Geun-hye's administration was accused of corruption, bribery, and influence-peddling for the involvement of "Choi Soon-sil in state affairs. Soon-sil was officially charged in November 2016. Following the scandal, there has been a series of "massive demonstrations that started in the first week of November 2016.[144] On December 9, the National Assembly "voted to impeach Park, suspending her from office. As a result, Prime Minister "Hwang Kyo-ahn became the acting President. On March 10, 2017, the "Constitutional Court of Korea voted to remove President Park from office immediately, ending her tenure as president.[145]

The country, including all its islands, lies between latitudes "33° and "39°N, and longitudes "124° and "130°E. Its total area is 100,032 square kilometres (38,622.57 sq mi).[146]

South Korea can be divided into four general regions: an eastern region of high mountain ranges and narrow "coastal plains; a western region of broad coastal plains, "river basins, and rolling hills; a southwestern region of mountains and valleys; and a southeastern region dominated by the broad basin of the "Nakdong River.[147]

South Korea's terrain is mostly mountainous, most of which is not "arable. "Lowlands, located primarily in the west and southeast, make up only 30% of the total land area.

About three thousand islands, mostly small and uninhabited, lie off the western and southern coasts of South Korea. "Jeju-do is about 100 kilometres (62 miles) off the southern coast of South Korea. It is the country's largest island, with an area of 1,845 "square kilometres (712 "square miles). Jeju is also the site of South Korea's highest point: "Hallasan, an extinct "volcano, reaches 1,950 metres (6,400 feet) "above sea level. The easternmost islands of South Korea include "Ulleungdo and "Liancourt Rocks (Dokdo/Takeshima), while "Marado and "Socotra Rock are the southernmost islands of South Korea.[147]

South Korea tends to have a "humid continental climate and a "humid subtropical climate, and is affected by the "East Asian monsoon, with "precipitation heavier in summer during a short rainy season called "jangma (장마), which begins end of June through the end of July. Winters can be extremely cold with the minimum temperature dropping below −20 °C (−4 °F) in the inland region of the country: in Seoul, the average January temperature range is −7 to 1 °C (19 to 34 °F), and the average August temperature range is 22 to 30 °C (72 to 86 °F). Winter temperatures are higher along the southern coast and considerably lower in the mountainous interior.[150] Summer can be uncomfortably hot and humid, with temperatures exceeding 30 °C (86 °F) in most parts of the country. South Korea has four distinct seasons; spring, summer, autumn and winter. Spring usually lasts from late March to early May, summer from mid-May to early September, autumn from mid-September to early November, and winter from mid-November to mid-March.

Rainfall is concentrated in the summer months of June through September. The southern coast is subject to late summer "typhoons that bring strong winds, heavy rains and sometime floods. The average annual precipitation varies from 1,370 millimetres (54 in) in "Seoul to 1,470 millimetres (58 in) in "Busan.

"Cheonggyecheon river is a modern public recreation space in downtown Seoul, South Korea

During the first 20 years of South Korea's growth surge, little effort was made to preserve the environment.[151] Unchecked industrialization and urban development have resulted in deforestation and the ongoing destruction of wetlands such as the Songdo Tidal Flat.[152] However, there have been recent efforts to balance these problems, including a government run $84 billion five-year "green growth project that aims to boost energy efficiency and green technology.[153]

The green-based economic strategy is a comprehensive overhaul of South Korea's economy, utilizing nearly two percent of the national GDP. The greening initiative includes such efforts as a nationwide bike network, solar and wind energy, lowering oil dependent vehicles, backing daylight savings and extensive usage of environmentally friendly technologies such as LEDs in electronics and lighting.[154] The country – already the world's most wired – plans to build a nationwide next-generation network that will be 10 times faster than broadband facilities, in order to reduce energy usage.[154]

Seoul's "tap water recently became safe to drink, with city officials branding it "Arisu" in a bid to convince the public.[158] Efforts have also been made with "afforestation projects. Another multibillion-dollar project was the restoration of "Cheonggyecheon, a stream running through downtown Seoul that had earlier been paved over by a motorway.[159] One major challenge is air quality, with "acid rain, sulfur oxides, and annual yellow dust storms being particular problems.[151] It is acknowledged that many of these difficulties are a result of South Korea's proximity to China, which is a major air polluter.[151]

Under its current constitution the state is sometimes referred to as the "Sixth Republic of South Korea. Like many democratic states,[161] South Korea has a government divided into three branches: "executive, "judicial, and "legislative. The executive and legislative branches operate primarily at the national level, although various ministries in the executive branch also carry out local functions. Local governments are semi-autonomous, and contain executive and "legislative bodies of their own. The judicial branch operates at both the national and local levels. South Korea is a constitutional democracy.

The South Korean government's structure is determined by the "Constitution of the Republic of Korea. This document has been revised several times since its first promulgation in 1948 at independence. However, it has retained many broad characteristics and with the exception of the short-lived "Second Republic of South Korea, the country has always had a presidential system with an independent chief executive.[162] The first direct "election was also held in 1948. Although South Korea experienced a series of military dictatorships from the 1960s up until the 1980s, it has since developed into a successful "liberal democracy. Today, the "CIA World Factbook describes South Korea's democracy as a "fully functioning modern democracy".[163] South Korea is ranked 37th on the "Corruption Perceptions Index, with moderate control on corruption.[164]

The major administrative divisions in South Korea are eight provinces, one special self-governing province, six metropolitan cities (self-governing cities that are not part of any province), one special city and one metropolitan autonomous city.

In April 2016, South Korea's population was estimated to be around 50.8 million by "National Statistical Office, with continuing decline of working age population and total fertility rate.[7][8] The country is noted for its population density, which was an estimated 505 per square kilometer in 2015,[7] more than 10 times the global average. Most South Koreans live in urban areas, because of rapid migration from the countryside during the country's quick economic expansion in the 1970s, 1980s and 1990s.[167] The capital city of "Seoul is also the country's largest city and chief industrial center. According to the 2005 census, Seoul had a population of 10 million inhabitants. The "Seoul National Capital Area has 24.5 million inhabitants (about half of South Korea's entire population) making it the world's second largest metropolitan area. Other major cities include "Busan (3.5 million), "Incheon (2.5 million), "Daegu (2.5 million), "Daejeon (1.4 million), "Gwangju (1.4 million) and "Ulsan (1.1 million).[168]

The population has also been shaped by international migration. After World War II and the "division of the Korean Peninsula, about four million people from North Korea crossed the border to South Korea. This trend of net entry reversed over the next 40 years because of emigration, especially to the United States and Canada. South Korea's total population in 1955 was 21.5 million,[169] and has more than doubled, to 50 million, by 2010.[170]

South Korea is one of the most ethnically homogeneous societies in the world, with more than 99% of inhabitants having Korean ethnicity.[171]

The percentage of foreign nationals has been growing rapidly.[172] As of 2009[update], South Korea had 1,106,884 foreign residents, 2.7% of the population; however, more than half of them are ethnic Koreans with a foreign citizenship. For example, "migrants from China (PRC) make up 56.5% of foreign nationals, but approximately 70% of the Chinese citizens in Korea are "Joseonjok (조선족 in Korean), PRC citizens of Korean ethnicity.[173] Regardless of the ethnicity, there are 28,500 "US military personnel serving in South Korea, most serving a one-year unaccompanied tour (though approximately 10% serve longer tours accompanied by family), according to the Korea National Statistical Office.[174][175] In addition, about 43,000 English teachers from "English-speaking countries reside temporarily in Korea.[176] Currently, South Korea has one of the highest rates of growth of foreign born population, with about 30,000 foreign born residents obtaining South Korean citizenship every year since 2010.

South Korea's birthrate was the world's lowest in 2009.[177] If this continues, its population is expected to decrease by 13% to 42.3 million in 2050.[178] South Korea's annual birthrate is approximately 9 births per 1000 people.[179] However, the birthrate has increased by 5.7% in 2010 and Korea no longer has the world's lowest birthrate.[180] According to a 2011 report from "The Chosun Ilbo, South Korea's total fertility rate (1.23 children born per woman) is higher than those of Taiwan (1.15) and Japan (1.21).[181] The average "life expectancy in 2008 was 79.10 years,[182] (which was 34th in the world[183]) but by 2015 it had increased to around 81.[184] South Korea has the steepest decline in working age population of the OECD nations.[185] In 2015, National Statistical Office estimated that the population of the country will have reached its peak by 2035.[7][8]

The front of the science library, Daejeon campus of "KAIST depicting the statue of "Jang Young Sil, a Korean scientist.

A centralized administration in South Korea oversees the process for the education of children from kindergarten to the third and final year of high school. The school year is divided into two semesters, the first of which begins in the beginning of March and ends in mid-July, the second of which begins in late August and ends in mid-February. The schedules are not uniformly standardized and vary from school to school. Most South Korean middle schools and high schools have school uniforms, modeled on western-style uniforms. Boys' uniforms usually consists of trousers and white shirts, and girls wear skirts and white shirts (this only applies in middle schools and high schools). The country adopted a new educational program to increase the number of their foreign students through 2010. According to the "Ministry of Education, Science and Technology, the number of scholarships for foreign students in South Korea would have (under the program) doubled by that time, and the number of foreign students would have reached 100,000.[187]

South Korea is one of the top-performing "OECD countries in reading literacy, maths and sciences with the average student scoring 542 and has one of the worlds highest-educated labour forces among OECD countries.[188][189] The country is well known for its high feverish outlook on education, where its national obsession with education has been called "education fever".[190][191][192] This obsession with education has catapulted the resource poor nation consistently atop the global education rankings where in 2014 national rankings of students’ math and science scores by the Organization for Economic and Cooperation and Development (OECD), South Korea ranked second place worldwide, after Singapore.[193]

Higher education is a serious issue in South Korea society, where it is viewed as one of the fundamental cornerstones of South Korean life. Education is regarded with a high priority for South Korean families as success in education holds a cultural status as well as a necessity to improve one's socioeconomic position in South Korean society.[194][195] Academic success is often a source of pride for families and within South Korean society at large. South Koreans view education as the main propeller of social mobility for themselves and their family as a gateway to the South Korean middle class. Graduating from a top university is the ultimate marker of prestige, high socioeconomic status, promising marriage prospects, and a respectable career path.[196] An average South Korean child's life revolves around education as pressure to succeed academically is deeply ingrained in South Korean children from an early age. Not having a university degree carries a major cultural stigma as those who lack a formal university education face social prejudice and are often looked down upon by others.[197]

In 2015, the country spent 4.7% of its GDP on all levels of education – roughly equal to the Organization for Economic Cooperation and Development (OECD) average of 4.7% also.[198] A strong investment in education, a militant drive for success as well as the passion for excellence has helped the resource poor country rapidly grow its economy over the past 60 years from a war torn wasteland.[199] South Korea’s zeal for education and its students’ desires to get into a prestigious university is one of the highest in the world, as the entrance into a top tier higher educational institution leads to a prestigious, secure and well-paid white collar job with the government, banks, a major South Korean "conglomerate such as "Samsung, "Hyundai or "LG Electronics.[200] With incredible pressure on high school students to secure places at the nation’s best universities, its institutional reputation and alumni networks are strong predictors of future career prospects. The top three universities in South Korea, often referred to as "SKY", are Seoul National University, Korea University and Yonsei University.[201][202] Intense competition for top grades and academic pressure to be the top student is deeply ingrained in the psyche of South Korean students at a young age.[202] Yet with only so many places at universities and even fewer places at top-tier companies, many young people remain disappointed and are often unwilling to lower their sights with the result of many feeling as underachievers. There is a major cultural taboo in South Korean society attached to those who have not achieved formal university education where those who don't hold university degrees face social prejudice and are often looked down by others as second-class citizens resulting fewer opportunities for employment, improvement of one's socioeconomic position and prospects for marriage.[203]

International reception on the South Korean education system has been divided. It has been praised for various reasons, including its comparatively high test results and its major role in ushering South Korea's "economic development creating one of the world's most educated workforces.[204] South Korea's highly enviable academic performance has gotten British education ministers actively remodeling their own curriculum's and exams to try to emulate Korea's militant drive and passion for excellence and high educational achievement.[204] U.S. President "Barack Obama has also praised the country's rigorous school system, where over 80 percent of South Korean high school graduates go on to university.[205] The nation's high university entrance rate has created a highly skilled workforce making South Korea among the most highly educated countries in the world with the one of the highest percentage of its citizens holding a tertiary education degree.[206] Bachelor's degrees are held by 68 percent of South Koreans aged 25–34, the most in the OECD.[206]

The system's rigid and hierarchical structure has been criticized for stifling creativity and innovation;[207][208] described as intensely and "brutally" competitive,[209] The system is often blamed for the high "suicide rate in the country, particularly the growing rates among those aged 10–19. Various media outlets attribute the country's high suicide rate on the nationwide anxiety around the country's college entrance exams, which determine the trajectory of students' entire lives and careers.[210][211] Former South Korean hagwon teacher Se-Woong Koo wrote that the South Korean education system amounts to "child abuse and that it should be "reformed and restructured without delay".[212] The system has also been criticized for producing an excess supply of university graduates creating an overeducated and underemployed labor force; in the first quarter of 2013 alone, nearly 3.3 million South Korean university graduates were jobless, leading many graduates overqualified for jobs requiring less education.[213] Further criticism has been stemmed for causing labor shortages in various skilled blue collar labor and vocational occupations, where many go unfilled as the negative social stigma associated with vocational careers and not having a university degree continues to remain deep-rooted in South Korean society.[197][214][215][216][217][218][219][220]

According to the results of the census of 2015 more than half of the South Korean population (56.9%) declared themselves not affiliated with any "religious organizations.[5] "Korean shamanism (also known as Sindo or Muism) is the native religion of the Koreans, and it may represent a large part of the unaffiliated. Indeed, according to a 2012 survey, only 15% of the population declared themselves not religious in the sense of ""atheism".[221] Of the people who are affiliated with a religious organization, most are "Christians and "Buddhists. According to the 2015 census, 27.6% of the population were Christians (19.7% identified themselves as Protestants, 7.9% as Roman Catholics), and 15.5% were Buddhists.[5] Other religions include "Islam (130.000 Muslims, mostly migrant workers from Pakistan and Bangladesh but including some 35,000 Korean Muslims,[222]) the homegrown sect of "Wonbuddhism, and a variety of indigenous religions, including "Cheondoism (a "Confucianizing religion), "Jeungsanism, "Daejongism, "Daesun Jinrihoe and others. "Freedom of religion is guaranteed by the constitution, and there is no "state religion.[223] Overall, between the 2005 and 2015 censuses there has been a slight decline of Christianity (down from 29% to 27.6%), a sharp decline of Buddhism (down from 22.8% to 15.5%), and a rise of the unaffiliated population (from 47.2% to 56.9%).[5]

Christianity is South Korea's largest organized religion, accounting for more than half of all South Korean adherents of religious organizations. There are approximately 13.5 million Christians in South Korea today; about two thirds of them belonging to Protestant churches, and the rest to the Roman Catholic Church.[5] The number of Protestants has been stagnant throughout the 1990s and the 2000s, but increased to a peak level throughout the 2010s. Roman Catholics increased significantly between the 1980s and the 2000s, but declined throughout the 2010s.[5] Christianity, unlike in other East Asian countries, found fertile ground in Korea in the 18th century, and by the end of the 18th century it persuaded a large part of the population as the declining monarchy supported it and opened the country to widespread proselytism as part of a project of Westernization. The weakness of Korean Sindo, which, unlike Japanese "Shinto and "China's religious system, never developed into a national religion of high status,[224] combined with the impoverished state of "Korean Buddhism (after 500 years of suppression at the hands of the Joseon state, by the 20th century it was virtually extinct) left a free hand to Christian churches. Christianity's similarity to native religious narratives has been studied as another factor that contributed to its success in the peninsula.[225] The "Japanese colonization of the first half of the 20th century further strengthened the identification of Christianity with "Korean nationalism, as the Japanese coopted native Korean Sindo into the Nipponic "Imperial Shinto that they tried to establish in the peninsula.[226] Widespread Christianization of the Koreans took place during State Shinto,[226] after its abolition, and then in the independent South Korea as the newly established military government supported Christianity and "tried to utterly oust native Sindo.

Buddhism was introduced to Korea in the 4th century.[228] It became soon a dominant religion in the southeastern kingdom of "Silla, the region that hitherto hosts the strongest concentration of Buddhists in South Korea. In the other states of the "Three Kingdoms Period, "Goguryeo and "Baekje, it was made the state religion respectively in 372 and 528. It remained the state religion in "Later Silla ("North South States Period) and "Goryeo. It was later suppressed throughout much of the subsequent history under the unified kingdom of Joseon (1392–1897), which officially adopted a strict "Korean Confucianism. Today, South Korea has about 7 million Buddhists,[5] most of them affiliated to the "Jogye Order. Most of the "National Treasures of South Korea are Buddhist artifacts.

South Korea maintains diplomatic relations with more than 188 countries. The country has also been a member of the United Nations since 1991, when it became a member state at the same time as North Korea. On January 1, 2007, Former South Korean Foreign Minister "Ban Ki-moon served as "UN Secretary-General from 2007 to 2016. It has also developed links with the "Association of Southeast Asian Nations as both a member of ASEAN Plus three, a body of observers, and the "East Asia Summit (EAS).

In 2010, South Korea and the "European Union concluded a "free trade agreement (FTA) to reduce trade barriers. South Korea is also negotiating a Free Trade Agreement with Canada,[232] and another with "New Zealand.[233] In November 2009 South Korea joined the OECD "Development Assistance Committee, marking the first time a former aid recipient country joined the group as a donor member. South Korea hosted the G-20 Summit in Seoul in November 2010.

Both North and South Korea continue to officially claim sovereignty over the entire peninsula and any outlying islands. Despite mutual animosity, reconciliation efforts have continued since the initial separation between North and South Korea. Political figures such as Kim Koo worked to reconcile the two governments even after the Korean War.[234] With longstanding animosity following the "Korean War from 1950 to 1953, North Korea and South Korea signed an agreement to pursue peace.[235] On October 4, 2007, Roh Moo-Hyun and North Korean leader "Kim Jong-il signed an eight-point agreement on issues of permanent peace, high-level talks, economic cooperation, renewal of train services, highway and air travel, and a joint Olympic cheering squad.[235]

Despite the Sunshine Policy and efforts at reconciliation, the progress was complicated by "North Korean missile tests in "1993, "1998, "2006, "2009, and 2013. As of early 2009[update], relationships between North and South Korea were very tense; North Korea had been reported to have deployed missiles,[236] ended its former agreements with South Korea,[237] and threatened South Korea and the United States not to interfere with a satellite launch it had planned.[238] North and South Korea are still technically at war (having never signed a peace treaty after the Korean War) and share the world's most heavily fortified border.[239] On May 27, 2009, North Korean media declared that the Armistice is no longer valid because of the South Korean government's pledge to "definitely join" the "Proliferation Security Initiative.[240] To further complicate and intensify strains between the two nations, the "sinking of the South Korean warship Cheonan in March 2010, is affirmed by the South Korean government[241] to have been caused by a North Korean torpedo, which the North denies. President Lee Myung-bak declared in May 2010 that Seoul would cut all trade with North Korea as part of measures primarily aimed at striking back at North Korea diplomatically and financially, except for the joint Kaesong Industrial Project, and humanitarian aid.[242] North Korea initially threatened to sever all ties, to completely abrogate the previous pact of non-aggression, and to expel all South Koreans from "a joint industrial zone in Kaesong, but backtracked on its threats and decided to continue its ties with South Korea. Despite the continuing ties, Kaesong industrial zone has seen a large decrease in investment and manpower as a result of this military conflict. In February 2016, the Kaesong complex was closed by Seoul in reaction to North Korea's launch of a rocket earlier in the month[243] unanimously condemned by the United Nations security council.[244]

Historically, Korea had close relations with the dynasties in China, and some Korean kingdoms were members of the "Imperial Chinese tributary system.[245][246][247][248] In modern times, before the formation of South Korea, Korean independence fighters worked with Chinese soldiers during the Japanese occupation. However, after "World War II, the People's Republic of China embraced "Maoism while South Korea sought close relations with the United States. The PRC assisted North Korea with manpower and supplies during the "Korean War, and in its aftermath the diplomatic relationship between South Korea and the PRC almost completely ceased. Relations thawed gradually and South Korea and the PRC re-established formal diplomatic relations on August 24, 1992. The two countries sought to improve bilateral relations and lifted the forty-year-old trade embargo,[249] and South Korean–Chinese relations have improved steadily since 1992.[249] The Republic of Korea broke off official relations with the "Republic of China (Taiwan) upon gaining official relations with the People's Republic of China, which doesn't recognise "Taiwan's sovereignty.[250]

Longstanding issues such as "Japanese war crimes against Korean civilians, the "negationist "re-writing of Japanese textbooks relating Japanese atrocities during World War II, the territorial disputes over the "Liancourt Rocks, known in South Korea as "Dokdo" and in Japan as "Takeshima",[257] and visits by Japanese politicians to the "Yasukuni Shrine, honoring Japanese people (civilians and military) killed during the war continue to trouble Korean-Japanese relations. The Liancourt Rocks were the first Korean territories to be forcibly colonized by Japan in 1905. Though it was again returned to Korea along with the rest of its territory in 1951 with the signing of the Treaty of San Francisco, Japan does not recant on its claims that the Liancourt Rocks are Japanese territory.[258] In response to then-Prime Minister "Junichiro Koizumi's visits to the Yasukuni Shrine, former "President "Roh Moo-hyun suspended all summit talks between South Korea and Japan in 2009.[259]

The "European Union (EU) and South Korea are important trading partners, having negotiated a "free trade agreement for many years since South Korea was designated as a priority FTA partner in 2006. The free trade agreement was approved in September 2010, and took effect on July 1, 2011.[260] South Korea is the EU's tenth largest trade partner, and the EU has become South Korea's fourth largest export destination. EU trade with South Korea exceeded €90 billion in 2015 and has enjoyed an annual average growth rate of 9.8% between 2003 and 2013.[261]

The EU has been the single largest foreign investor in South Korea since 1962, and accounted for almost 45% of all FDI inflows into Korea in 2006. Nevertheless, EU companies have significant problems accessing and operating in the South Korean market because of stringent standards and testing requirements for products and services often creating barriers to trade. Both in its regular bilateral contacts with South Korea and through its FTA with Korea, the EU is seeking to improve this situation.[261]

The United States engaged in the decolonization of Korea (mainly in the South, with the Soviet Union engaged in North Korea) from Japan after World War II. After three years of military administration by the United States, the South Korean government was established. Upon the onset of the Korean War, U.S. forces were sent to defend against an invasion from North Korea of the South. Following the Armistice, South Korea and the U.S. agreed to a "Mutual Defense Treaty", under which an attack on either party in the "Pacific area would summon a response from both.[262] In 1967, South Korea obliged the mutual defense treaty, by sending a large combat troop contingent to support the United States in the "Vietnam War. The "U.S. Eighth Army, "Seventh Air Force, and "U.S. Naval Forces Korea are stationed in South Korea. The two nations have strong economic, diplomatic, and military ties, although they have at times disagreed with regard to policies towards North Korea, and with regard to some of South Korea's industrial activities that involve usage of rocket or nuclear technology. There had also been strong anti-American sentiment during certain periods, which has largely moderated in the modern day.[263] In 2007, a free trade agreement known as the "Republic of Korea-United States Free Trade Agreement (KORUS FTA) was signed between South Korea and the United States, but its formal implementation was repeatedly delayed, pending approval by the legislative bodies of the two countries. On October 12, 2011, the U.S. Congress passed the long-stalled trade agreement with South Korea.[264] It went into effect on March 15, 2012.[265]

This section's "factual accuracy may be compromised due to out-of-date information. Please update this article to reflect recent events or newly available information.(March 2012)

The unresolved tension with North Korea have prompted South Korea to allocate 2.6% of its GDP and 15% of all government spending to its military (Government share of GDP: 14.967%), while maintaining compulsory conscription for men.[266] Consequently, South Korea has the world's sixth largest number of "active troops (650,000 in 2011),[267] the world's second-largest number of "reserve troops (3,200,000 in 2011)[267] and the eleventh largest "defense budget. The Republic of Korea, with both regular and reserve military force numbering 3.7 million regular personnel among a total national population of 50 million people, has the second highest number of soldiers per capita in the world,[267] after the Democratic People's Republic of Korea.[268]

The South Korean military consists of the "Army (ROKA), the "Navy (ROKN), the "Air Force (ROKAF), and the "Marine Corps (ROKMC), and reserve forces.[269] Many of these forces are concentrated near the "Korean Demilitarized Zone. All South Korean males are constitutionally required to serve in the military, typically 21 months. Previously, Koreans of mixed race were exempt from military duty but no exception from 2011.[270]

In addition to male conscription in South Korea's sovereign military, 1,800 Korean males are selected every year to serve 21 months in the "KATUSA Program to further augment the "United States Forces Korea (USFK).[271] In 2010, South Korea was spending "₩1.68 trillion in a cost-sharing agreement with the US to provide budgetary support to the US forces in Korea, on top of the ₩29.6 trillion budget for its own military.

The "South Korean army has 2,500 "tanks in operation, including the "K1A1 and "K2 Black Panther, which form the backbone of the South Korean army's mechanized armor and infantry forces. A sizable arsenal of many artillery systems, including 1,700 self-propelled "K55 and "K9 Thunder "howitzers and 680 helicopters and "UAVs of numerous types, are assembled to provide additional fire, reconnaissance, and logistics support. South Korea's smaller but more advanced artillery force and wide range of airborne reconnaissance platforms are pivotal in the "counter-battery suppression of North Korea's large artillery force, which operates more than 13,000 artillery systems deployed in various state of fortification and mobility.[267][272]

The South Korean air force operates 840 aircraft, making it world's ninth largest air force, including several types of advanced fighters like "F-15K, heavily modified "KF-16C/D,[274] and the indigenous "F/A-50,[275][276] supported by well-maintained fleets of older fighters such as "F-4E and "KF-5E/F that still effectively serve the air force alongside the more modern aircraft. In an attempt to gain strength in terms of not just numbers but also modernity, the commissioning of four "Boeing 737 AEW&C aircraft, under Project Peace Eye for "centralized intelligence gathering and analysis on a modern battlefield, will enhance the fighters' and other support aircraft's ability to perform their missions with awareness and precision.

In May 2011, "Korea Aerospace Industries Ltd., South Korea's largest plane maker, signed a $400 million deal to sell 16 T-50 Golden Eagle trainer jets to "Indonesia, making South Korea the first country in Asia to export supersonic jets.[277]

From time to time, South Korea has sent its troops overseas to assist American forces. It has participated in most major conflicts that the United States has been involved in the past 50 years. South Korea dispatched 325,517 troops to fight alongside American, Australian, "Filipino, New Zealand and "South Vietnamese soldiers in the "Vietnam War, with a peak strength of 50,000.[278] In 2004, South Korea sent 3,300 troops of the "Zaytun Division to help re-building in northern "Iraq, and was the third largest contributor in the "coalition forces after only the US and Britain.[279] Beginning in 2001, South Korea had so far deployed 24,000 troops in the Middle East region to support the "War on Terrorism. A further 1,800 were deployed since 2007 to reinforce UN peacekeeping forces in "Lebanon.

The United States has stationed a substantial contingent of troops in South Korea since the "Korean War to defend South Korea in case of East Asian military crises. There are approximately 28,500 U.S. Military personnel stationed in Korea,[280] most of them serving one year unaccompanied tours. The American troops, which are primarily ground and air units, are assigned to "USFK and mainly assigned to the "Eighth United States Army of the "US Army and "Seventh Air Force of the "US Air Force. They are stationed in installations at "Osan, "Kunsan, Yongsan, "Dongducheon, Sungbuk, "Camp Humphreys, and "Daegu, as well as at "Camp Bonifas in the DMZ "Joint Security Area. A still functioning "UN Command is technically the top of the "chain of command of all forces in South Korea, including the US forces and the entire South Korean military – if a sudden escalation of war between North and South Korea were to occur the United States would assume control of the South Korean armed forces in all military and paramilitary moves. However, in September 2006, the Presidents of the United States and the Republic of Korea agreed that South Korea should assume the lead for its own defense. In early 2007, the U.S. Secretary of Defense and ROK Minister of National Defense determined that South Korea will assume wartime operational control of its forces on December 1, 2015. USFK will transform into a new joint-warfighting command, provisionally described as Korea Command (KORCOM).[281]

With its massive investment in education has taken the country from mass illiteracy to a major international technological powerhouse. The country's national economy benefits from a highly skilled workforce and is among the most educated countries in the world with the one of the highest percentage of its citizens holding a tertiary education degree.[206] South Korea's economy was one of the world's fastest-growing from the early 1960s to the late 1990s, and South Korea is still one of the fastest-growing developed countries in the 2000s, along with Hong Kong, Singapore, and Taiwan, the other three "Asian Tigers.[285] South Koreans refer to this growth as the "Miracle on the Han River.[286] The South Korean economy is heavily dependent on international trade, and in 2014, South Korea was the "5th largest exporter and "7th largest importer in the world.

South Korea hosted the "fifth G20 summit in its capital city, Seoul, in November 2010. The two-day summit was expected to boost South Korea's economy by 31 trillion won, or 4% of South Korea's 2010 GDP, in economic effects, and create over 160,000 jobs in South Korea. It may also help improve the country's sovereign "credit rating.[287]

Despite the South Korean economy's high growth potential and apparent structural stability, the country suffers damage to its credit rating in the stock market because of the belligerence of North Korea in times of deep military crises, which has an adverse effect on South Korean financial markets.[288][289] The "International Monetary Fund compliments the resilience of the South Korean economy against various economic crises, citing low state debt and high fiscal reserves that can quickly be mobilized to address financial emergencies.[290] Although it was severely harmed by the Asian economic crisis of the late 1990s, the South Korean economy managed a rapid recovery and subsequently tripled its GDP.[291]

Furthermore, South Korea was one of the few developed countries that were able to avoid a "recession during the "global financial crisis.[292] Its economic growth rate reached 6.2 percent in 2010 (the fastest growth for eight years after significant growth by 7.2 percent in 2002),[293] a sharp recovery from economic growth rates of 2.3% in 2008 and 0.2% in 2009, when the global financial crisis hit. The unemployment rate in South Korea also remained low in 2009, at 3.6%.[294]

The following list includes the largest South Korean companies by revenue in 2013 who are all listed as part of the "Fortune Global 500:

Korea developed the "HEMU 430X "high-speed train, which can travel at over 430 km/h (267 mph), making South Korea the world's fourth country after "France, "Japan and "China to develop a high-speed train running above 420 km/h on conventional rails.

"Korean Air, founded in 1962, served 21,640,000 passengers, including 12,490,000 international passengers in 2008.[301] A second carrier, "Asiana Airlines, established in 1988, also serves domestic and international traffic. Combined, South Korean airlines serve 297 international routes.[302] Smaller airlines, such as "Jeju Air, provide domestic service with lower fares.[303]

South Korea is the world's fifth-largest "nuclear power producer and the second-largest in Asia as of 2010[update].[304] "Nuclear power in South Korea supplies 45% of electricity production, and research is very active with investigation into a variety of advanced reactors, including a small modular reactor, a liquid-metal fast/"transmutation reactor and a high-temperature "hydrogen generation design. Fuel production and waste handling technologies have also been developed locally. It is also a member of the "ITER project.[305]

South Korea is an emerging exporter of "nuclear reactors, having concluded agreements with the "UAE to build and maintain four advanced nuclear reactors,[306] with "Jordan for a research nuclear reactor,[307][308] and with "Argentina for construction and repair of heavy-water nuclear reactors.[309][310] As of 2010[update], South Korea and "Turkey are in negotiations regarding construction of two nuclear reactors.[311] South Korea is also preparing to bid on construction of a light-water nuclear reactor for Argentina.[310]

South Korea is not allowed to "enrich uranium or develop traditional uranium enrichment technology on its own, because of US political pressure,[312] unlike most major nuclear powers such as Japan, Germany, and France, competitors of South Korea in the international nuclear market. This impediment to South Korea's indigenous nuclear industrial undertaking has sparked occasional diplomatic rows between the two allies. While South Korea is successful in exporting its electricity-generating nuclear technology and nuclear reactors, it cannot capitalize on the "market for nuclear enrichment facilities and refineries, preventing it from further expanding its export niche. South Korea has sought unique technologies such as "pyroprocessing to circumvent these obstacles and seek a more advantageous competition.[313] The US has recently been wary of South Korea's burgeoning nuclear program, which South Korea insists will be for civilian use only.[304]

South Korea is the third highest ranked Asian country in the World Economic Forum's "Network Readiness Index (NRI) after Singapore and Hong Kong respectively – an indicator for determining the development level of a country's information and communication technologies. South Korea ranked number 10 overall in the 2014 NRI ranking, up from 11 in 2013.[314]

In 2012, 11.1 million foreign tourists visited South Korea, making it the 20th most visited country in the world,[315] up from 8.5 million in 2010.[316] Due to Hallyu, South Korea welcomed more than 12 million visitors in 2013 with 6 million tourists coming from China alone.[317][318] With rising tourist prospects, especially from foreign countries outside of Asia, the South Korean government has set a target of attracting 20 million foreign tourists a year by 2017.[319] Hallyu's positive effects of the nation's entertainment industry are not limited to within its culture industry, according to a study by the Hyundai Research Institute. The Hyundai Research Institute reported that the Korean Wave has a direct impact in encouraging direct foreign investment back into the country through demand for products, and the tourism industry.[320] Among Asian countries, China was the most receptive, investing 1.4 billion in South Korea, with much of the investment within its service sector, a sevenfold increase from 2001. According to economist, Han Sang-Wan, shown an analysis that a 1 percent increase of exports of Korean cultural content pushes consumer goods exports up 0.083 percent while a 1 percent increase in Korean pop content exports to a country produces a 0.019 percent bump in tourism.[320]

The South Korean "pension system was created to provide benefits to persons reaching old age, families and persons stricken with death of their primary breadwinner, and for the purposes of stabilizing its nations welfare state.[321] South Korea's pensions system structure is primarily based on taxation and is income-related. In 2007 there was a total of 18,367,000 insured individuals with only around 511,000 persons excluded from mandatory contribution.[322] The current pension system is divided into four categories distributing benefits to participants through national, military personnel, governmental, and private school teacher pension schemes.[323] The national pension scheme is the primary welfare system providing allowances to the majority of persons. Eligibility for the national pension scheme is not dependent on income but on age and residence, where those between the ages of 18 to 59 are covered.[324] Any one who is under the age of 18 are dependents of someone who is covered or under a special exclusion where they are allowed to alternate provisions.[325] The national pension scheme is divided into four categories of insured persons – the workplace-based insured, the individually insured, the voluntarily insured, and the voluntarily and continuously insured.

Employees between the ages of 18 to 59 are covered under the workplace-based pension scheme and contribute 4.5% of their gross monthly earnings.[321] The national pension covers employees who work in firms that employ five or more employees, fishermen, farmers, and the self-employed in both rural and urban areas. Employers are also covered under the workplace-based pension scheme and help cover their employees obligated 9% contribution by providing the remaining 4.5%.[325] Anyone who is not employed, of the age of 60 or above, and excluded by article 6 of the National Pension Act but of the ages between 18 and 59, is covered under the individually insured pension scheme.[326] Persons covered by the individually insured pension scheme are in charge of paying the entire 9% contribution themselves. Voluntarily insured persons are not subjected to mandatory coverage but can choose to be. This category comprises retirees who voluntarily choose to have additional benefits, individuals under the age of 27 without income, and individuals whose spouses are covered under a public welfare system, whether military, governmental, or private school teacher pensions.[324] Like the Individually insured persons, they too are in charge of covering the full amount of the contribution. Voluntarily and continuously insured persons consists of individuals 60 years of age who want to fulfill the minimum insured period of 20 years to qualify for old age pension benefits.[326] Excluding the workplace-based insured persons, all the other insured persons personally cover their own 9% contribution.[324]

South Korea's old-age pension scheme covers individuals age 60 or older for the rest of their life as long as they have satisfied the minimum of 20 years of national pension coverage before hand.[325] Individuals with a minimum of 10 years covered under the national pension scheme and who are 60 years of age are able to be covered by under a 'reduced old-age pension' scheme. There also is an 'active old-age pension' scheme that covers individuals age 60 to 65 engaged in activities yielding earned income. Individuals age of 55 and younger than 60 who are not engaged in activities yielding earned income are eligible to be covered under the 'early old-age pension' scheme.[326] Around 60% of all Korean elders, age 65 and over are entitled to a 5% benefit of their past average income at an average of 90,000 "Korean Won (KRW).[327] Basic old-age pension schemes covered individuals 65 years of age who earned below an amount set by presidential order. In 2010, that ceiling was 700,00 KRW for a single individual and 1,120,000 for a couple, equivalent to around $600.00 and $960.00.[325]

Scientific and technological development in the South Korea at first did not occur largely because of more pressing matters such as the "division of Korea and the "Korean War that occurred right after its independence. It wasn't until the 1960s under the dictatorship of "Park Chung-hee where "South Korea's economy rapidly grew from industrialisation and the "Chaebol corporations such as "Samsung and "LG. Ever since the industrialization of South Korea's economy, South Korea has placed its focus on technology-based corporations, which has been supported by infrastructure developments by the government. South Korean corporations "Samsung and "LG were ranked first and third largest "mobile phone companies in the world in the first quarter of 2012, respectively.[328] An estimated 90% of South Koreans own a mobile phone.[329] Aside from placing/receiving calls and text messaging, mobile phones in the country are widely used for watching "Digital Multimedia Broadcasting (DMB) or viewing websites.[330] Over one million DMB phones have been sold and the three major wireless communications providers "SK Telecom, "KT, and "LG U+ provide coverage in all major cities and other areas. South Korea has the fastest Internet download speeds in the world, with an average download speed of 25.3 Mbit/s.[331]

South Korea leads the "OECD in graduates in science and engineering.[43] The country ranks first among the most innovative countries in the "Bloomberg Innovation Index.[332][333] Additionally, South Korea today is known as a Launchpad of a mature mobile market, where developers can reap benefits of a market where very few technology constraints exist. There is a growing trend of inventions of new types of media or apps, utilizing the 4G and 5G internet infrastructure in South Korea. South Korea has today the infrastructures to meet a density of population and culture that has the capability to create strong local particularity.[334]

Following cyberattacks in the first half of 2013, whereby government, news-media, television station, and bank websites were compromised, the national government committed to the training of 5,000 new cybersecurity experts by 2017. The South Korean government blamed its northern counterpart for these attacks, as well as incidents that occurred in 2009, 2011 and 2012, but Pyongyang denies the accusations.[335]

In late September 2013, a computer-security competition jointly sponsored by the defense ministry and the National Intelligence Service was announced. The winners were announced on September 29, 2013 and shared a total prize pool of 80 million won ("US$74,000).[335]

South Korea has sent up 10 satellites from 1992, all using foreign rockets and overseas launch pads, notably "Arirang-1 in 1999, and "Arirang-2 in 2006 as part of its space partnership with Russia.[336] Arirang-1 was lost in space in 2008, after nine years in service.[337]

In June 2009, the first "spaceport of South Korea, "Naro Space Center, was completed at "Goheung, "Jeollanam-do.[340] The launch of "Naro-1 in August 2009 resulted in a failure.[341] The second attempt in June 2010 was also unsuccessful.[342] However the third launch of the Naro 1 in January 2013 was successful.[343] The government plans to develop Naro-2 by the year 2018.[344]

South Korea's efforts to build an indigenous space launch vehicle is marred because of persistent political pressure of the United States, who had for many decades hindered South Korea's indigenous rocket and missile development programs[345] in fear of their possible connection to clandestine military ballistic missile programs, which Korea many times insisted did not violate the "research and development guidelines stipulated by US-Korea agreements on restriction of South Korean rocket technology research and development.[346] South Korea has sought the assistance of foreign countries such as "Russia through "MTCR commitments to supplement its restricted domestic rocket technology. The two failed KSLV-I "launch vehicles were based on the "Universal Rocket Module, the first stage of the Russian "Angara rocket, combined with a solid-fueled second stage built by South Korea.

Albert HUBO, developed by "KAIST, can make expressive gestures with its five separate fingers

"Robotics has been included in the list of main national R&D projects in Korea since 2003.[347] In 2009, the government announced plans to build robot-themed parks in "Incheon and "Masan with a mix of public and private funding.[348]

Plans of creating English-teaching robot assistants to compensate for the shortage of teachers were announced in February 2010, with the robots being deployed to most preschools and kindergartens by 2013.[352] Robotics are also incorporated in the entertainment sector as well; the Korean Robot Game Festival has been held every year since 2004 to promote science and robot technology.[353]

Since the 1980s, the Korean government has invested in the development of a domestic "biotechnology industry, and the sector is projected to grow to $6.5 billion by 2010.[354] The medical sector accounts for a large part of the production, including production of "hepatitis vaccines and "antibiotics.

The industrialization and urbanization of South Korea have brought many changes to the way "Korean people live. Changing economics and lifestyles have led to a concentration of population in major cities, especially the capital Seoul, with multi-generational households separating into "nuclear family living arrangements. A 2014 Euromonitor study found that South Koreans drink the most alcohol on a weekly basis compared to the rest of the world. South Koreans drink 13.7 shots of liquor per week on average and, of the 44 other countries analyzed, Russia, the Philippines, and Thailand follow.[359]

Post-war modern Korean art started to flourish in the 1960s and 1970s, when South Korean artists took interest in geometrical shapes and intangible subjects. Establishing a harmony between man and nature was also a favorite of this time. Because of social instability, social issues appeared as main subjects in the 1980s. Art was influenced by various international events and exhibits in Korea, and with it brought more diversity.[362] The "Olympic Sculpture Garden in 1988, the transposition of the 1993 edition of the "Whitney Biennial to Seoul,[363] the creation of the "Gwangju Biennale[364] and the Korean Pavilion at the "Venice Biennale in 1995[365] were notable events.

Western architecture was first introduced to Korea at the end of the 19th century. Churches, offices for foreign legislation, schools and university buildings were built in new styles. With the "annexation of Korea by Japan in 1910 the colonial regime intervened in Korea's architectural heritage, and Japanese-style modern architecture was imposed. The anti-Japanese sentiment, and the Korean War, led to the destruction of most buildings constructed during that time.[370]

Korean architecture entered a new phase of development during the post-Korean War reconstruction, incorporating modern architectural trends and styles. Stimulated by the economic growth in the 1970s and 1980s, active redevelopment saw new horizons in architectural design. In the aftermath of the 1988 Seoul Olympics, South Korea has witnessed a wide variation of styles in its architectural landscape due, in large part, to the opening up of the market to foreign architects.[371] Contemporary architectural efforts have been constantly trying to balance the traditional philosophy of "harmony with nature" and the fast-paced urbanization that the country has been going through in recent years.[372]

Korean cuisine, hanguk yori (한국요리; 韓國料理), or hansik (한식; 韓食), has evolved through centuries of social and political change. Ingredients and dishes vary by province. There are many significant regional dishes that have proliferated in different variations across the country in the present day. The "Korean royal court cuisine once brought all of the unique regional specialties together for the royal family. Meals consumed both by the royal family and ordinary Korean citizens have been regulated by a unique culture of etiquette.

Korean cuisine is largely based on "rice, "noodles, "tofu, vegetables, fish and meats. Traditional Korean meals are noted for the number of side dishes, "banchan (반찬), which accompany steam-cooked short-grain rice. Every meal is accompanied by numerous banchan. "Kimchi (김치), a fermented, usually spicy vegetable dish is commonly served at every meal and is one of the best known Korean dishes. Korean cuisine usually involves heavy seasoning with "sesame oil, "doenjang (된장), a type of "fermented soybean paste, "soy sauce, salt, garlic, ginger, and "gochujang (고추장), a hot pepper paste. Other well-known dishes are "Bulgogi (불고기), grilled marinated beef, "Gimbap (김밥), and "Tteokbokki (떡볶이), a spicy snack consisting of rice cake seasoned with gochujang or a spicy chili paste.

Soups are also a common part of a Korean meal and are served as part of the main course rather than at the beginning or the end of the meal. Soups known as "guk (국) are often made with meats, shellfish and vegetables. Similar to guk, tang (탕; 湯) has less water, and is more often served in restaurants. Another type is "jjigae (찌개), a "stew that is typically heavily seasoned with chili pepper and served boiling hot.

"Rain, one of the most popular music artists in South Korea, found international fame by reaching a global audience through his music and films.

In addition to domestic consumption, South Korea has a thriving entertainment industry where various facets of South Korean entertainment including television dramas, films, and popular music has generated significant financial revenues for the nation's economy. The cultural phenomenon known as "Hallyu or the "Korean Wave", has swept many countries across Asia making South Korea a major soft power as an exporter of popular culture and entertainment, rivaling Western nations such as the United States and the United Kingdom.[374]

Until the 1990s, "trot and traditional Korean "folk based ballads dominated South Korean popular music. The emergence of the South Korean pop group "Seo Taiji and Boys in 1992 marked a turning point for South Korean popular music, also known as "K-pop, as the genre modernized itself from incorporating elements of popular musical genres from the West such as "Western popular music, "experimental, "jazz, "gospel, "Latin, "classical, "hip hop, "rhythm and blues, "electronic dance, "reggae, "country, "folk, and "rock on top of its uniquely "traditional Korean music roots.[375] Western-style pop, hip hop, rhythm and blues, rock, folk, electronic dance oriented acts have become dominant in the modern South Korean popular music scene, though trot is still enjoyed among older South Koreans. K-pop stars and groups are well known across Asia and have found international fame making millions of dollars in export revenue. Many K-pop acts have also been able secure a strong overseas following following using online social media platforms such as the video sharing website "YouTube. South Korean singer "PSY became an international sensation when his song ""Gangnam Style" topped global music charts in 2012.

Since the success of the film "Shiri in 1999, the "Korean film industry has begun to gain recognition internationally. Domestic film has a dominant share of the market, partly because of the existence of "screen quotas requiring cinemas to show Korean films at least 73 days a year.[376]

There are many official public holidays in South Korea. Korean New Year's Day, or "Seollal", is celebrated on the first day of the Korean lunar calendar. "Korean Independence Day falls on March 1, and commemorates the March 1 Movement of 1919. Memorial Day is celebrated on June 6, and its purpose is to honor the men and women who died in South Korea's independence movement. Constitution Day is on July 17, and it celebrates the promulgation of "Constitution of the Republic of Korea. Liberation Day, on August 15, celebrates Korea's liberation from the "Empire of Japan in 1945. Every 15th day of the 8th lunar month, Koreans celebrate the "Midautumn Festival, in which Koreans visit their ancestral hometowns and eat a variety of traditional Korean foods. On October 1, Armed Forces day is celebrated, honoring the military forces of South Korea. October 3 is "National Foundation Day. Hangul Day, on October 9 commemorates the invention of "hangul, the native alphabet of the "Korean language.

Competitive "video gaming, also called "eSports (sometimes written e-Sports), has become more popular South Korea in recent years, particularly among young people.[396] The two most popular games are "League of Legends and "StarCraft. The gaming scene of South Korea is managed by the "Korean e-Sports Association (KeSPA for short) and has become something of a career for many players. They can make a living out of their activity and top players can even make a significant amount of money with some high end Starcraft II players ending up making six figure salaries.

"An extreme manifestation of nationalism and the family cult was the revival of interest in Tangun, the mythical founder of the first Korean state... Most textbooks and professional historians, however, treat him as a myth."

^Yi, Hyŏn-hŭi; Pak, Sŏng-su; Yun, Nae-hyŏn (2005). New history of Korea. Jimoondang. p. 201. "ISBN "9788988095850. He launched a military expedition to expand his territory, opening the golden age of Goguryeo.

^Yi, Ki-baek. A New History of Korea. Harvard University Press. p. 47. "ISBN "9780674615762. Retrieved July 29, 2016. Koguryŏ was the first to open hostilities, with a bold assault across the Liao River against Liao-hsi, in 598. The Sui emperor, Wen Ti, launched a retaliatory attack on Koguryŏ but met with reverses and turned back in mid-course. Yang Ti, the next Sui emperor, proceeded in 612 to mount an invasion of unprecedented magnitude, marshalling a huge force said to number over a million men. And when his armies failed to take Liao-tung Fortress (modern Liao-yang), the anchor of Koguryŏ's first line of defense, he had a nearly a third of his forces, some 300,000 strong, break off the battle there and strike directly at the Koguryŏ capital of P'yŏngyang. But the Sui army was lured into a trap by the famed Koguryŏ commander Ŭlchi Mundŏk, and suffered a calamitous defeat at the Salsu (Ch'ŏngch'ŏn) River. It is said that only 2,700 of the 300,000 Sui soldiers who had crossed the Yalu survived to find their way back, and the Sui emperor now lifted the siege of Liao-tung Fortress and withdrew his forces to China proper. Yang Ti continued to send his armies against Koguryŏ but again without success, and before long his war-weakened empire crumbled.

^Nahm, Andrew C. (2005). A Panorama of 5000 Years: Korean History (Second revised ed.). Seoul: Hollym International Corporation. p. 18. "ISBN "093087868X. China, which had been split into many states since the early 3rd century, was reunified by the Sui dynasty at the end of the 6th century. Soon after that, Sui China mobilized a large number of troops and launched war against Koguryŏ. However, the people of Koguryŏ were united and they were able to repel the Chinese aggressors. In 612, Sui troops invaded Korea again, but Koguryŏ forces fought bravely and destroyed Sui troops everywhere. General Ŭlchi Mundŏk of Koguryŏ completely wiped out some 300,000 Sui troops which came across the Yalu River in the battles near the Salsu River (now Ch'ŏngch'ŏn River) with his ingenious military tactics. Only 2,700 Sui troops were able to flee from Korea. The Sui dynasty, which wasted so much energy and manpower in aggressive wars against Koguryŏ, fell in 618.

^Reischauer, Edwin Oldfather (1955-05-01). Ennins Travels in Tang China. John Wiley & Sons Canada, Limited. pp. 276–283. "ISBN "9780471070535. Retrieved July 21, 2016. From what Ennin tells us, it seems that commerce between East China, Korea and Japan was, for the most part, in the hands of men from Silla. Here in the relatively dangerous waters on the eastern fringes of the world, they performed the same functions as did the traders of the placid Mediterranean on the western fringes. This is a historical fact of considerable significance but one which has received virtually no attention in the standard historical compilations of that period or in the modern books based on these sources. . . . While there were limits to the influence of the Koreans along the eastern coast of China, there can be no doubt of their dominance over the waters off these shores. . . . The days of Korean maritime dominance in the Far East actually were numbered, but in Ennin's time the men of Silla were still the masters of the seas in their part of the world.

^Lee, Ki-Baik (1984). A New History of Korea. Cambridge, Massachusetts: Harvard University Press. p. 103. "ISBN "067461576X. When Parhae perished at the hands of the Khitan around this same time, much of its ruling class, who were of Koguryŏ descent, fled to Koryŏ. Wang Kŏn warmly welcomed them and generously gave them land. Along with bestowing the name Wang Kye ("Successor of the Royal Wang") on the Parhae crown prince, Tae Kwang-hyŏn, Wang Kŏn entered his name in the royal household register, thus clearly conveying the idea that they belonged to the same lineage, and also had rituals performed in honor of his progenitor. Thus Koryŏ achieved a true national unification that embraced not only the Later Three Kingdoms but even survivors of Koguryŏ lineage from the Parhae kingdom.

^Turnbull, Stephen (November 20, 2012). The Samurai Invasion of Korea 1592–98. Osprey Publishing. p. 17. Retrieved March 25, 2015. "His naval victories were to prove decisive in the Japanese defeat, although Yi was to die during his final battle in 1598."

^Perez, Louis (2013). Japan At War: An Encyclopedia. Santa Barbara, California: ABC-CLIO. p. 140."Just as a complete Japanese victory appeared imminent, Admiral Yi entered the war and quickly turned the tide."

^Perez, Louis (2013). Japan At War: An Encyclopedia. Santa Barbara, California: ABC-CLIO. pp. 140–141."Yi's successes gave Korea complete control of the sea lanes around the peninsula, and the Korean navy was able to intercept most of the supplies and communications between Japan and Korea"

^The estimated area rises steadily from year to year, possibly because of land reclamation. 행정구역(구시군)별 국토적. Korea Statistical Information Service (in Korean). Archived from the original on September 17, 2004. Retrieved March 27, 2006.

^Renewable Energy Policy Mechanisms by Paul GipeArchived May 10, 2012, at the "Wayback Machine.(1.3MB)
Lauber, V. (2004). "REFIT and RPS: Options for a harmonized Community framework", Energy Policy, Vol. 32, Issue 12, pp.1405–1414.
Lauber, V. (2008). "Certificate Trading – Part of the Solution or Part of the Problem?" Ljubljana Conference on the Future of GHG Emissions Trading in the EU, March 2008. Salzburg, Austria: University of Salzburg. Retrieved March 16, 2009 at www.uni-salzburg.at/politikwissenschaft/lauber

^Kwak, p. 99., p. 99, at Google Books; excerpt, "Korea's tributary relations with China began as early as the fifth century, were regularized during the Goryeo dynasty (918–1392), and became fully institutionalized during the Yi dynasty (1392–1910)."

^Seth, Michael J. (2006). A concise history of Korea, p. 64, p. 64, at Google Books; excerpt, "China found instead that its policy of using trade and cultural exchanges and offering legitimacy and prestige to the Silla monarchy was effective in keeping Silla safely in the tributary system. Indeed, the relationship that was worked out in the late seventh and early eighth centuries can be considered the beginning of the mature tributary relationship that would characterize Sino-Korean interchange most of the time until the late nineteenth century;"

^A Brief History of the US-Korea Relations Prior to 1945. "While less than 100 Koreans in America enlisted in the US military during World War II, more than 100,000 Koreans served in the Japanese army as officers and soldiers. There were two Korean Lt. Generals in the Japanese Army: a Chosun prince, whose rank was honorary and who commanded no troops; and Lt. Gen. "Hong Sa-Ik, who was a professional military man from the old Chosun army."

^"Eighth United States Army (EUSA)". GlobalSecurity.org. December 27, 2005. Retrieved February 6, 2010. The KATUSA Program is significant not only because of the military manpower and monetary savings that it provides to the U.S. Army, but also because it represents ROK/U.S. cooperation and commitment to deter war. The KATUSA Program is symbolic of ROK/U.S. friendship and mutual support.